Rod position measurement auxiliary device for reactor control rod

Abstract

The utility model discloses a reactor control rod position measurement auxiliary device which comprises a protection base, a reactor body is arranged on the protection base, a control rod body is arranged on the reactor body, a side wall protection wall is fixedly installed on one side of the protection base, and a top installation plate is fixedly installed on one side of the side wall protection wall. The reactor control rod position measurement auxiliary device comprises a top mounting plate, a bottom auxiliary plate is mounted on the top mounting plate through a guide mounting assembly, a bottom mounting block is mounted on the bottom auxiliary plate, and a lower conductive contact block is mounted on the bottom mounting block. When the height of the control rod body is changed, the bottom auxiliary plate is pushed to move upwards, infrared light emitted by the infrared lamp can irradiate on the measurement scales, and the height change condition of the control rod body can be visually observed by observing the measurement scales, so that a good auxiliary measurement effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of reactor control rods, in particular to an auxiliary device for measuring the position of a reactor control rod. Background Technique

[0002] A nuclear reactor, also known as an atomic energy reactor or a reactor, is a device that can maintain a controllable self-sustaining chain nuclear fission reaction to realize the utilization of nuclear energy. By reasonably arranging nuclear fuel in the nuclear reactor, a self-sustaining chain nuclear fission process can occur therein without adding a neutron source. Control rods are made of neutron-absorbing materials to control the rate of the chain reaction at a predetermined level, and are called control rods and safety rods. Control rods are used to compensate for fuel consumption and adjust the reaction rate; safety rods are used to quickly stop the chain reaction.

[0003] During the use of small reactor control rods, the height of the control rod will change in different situations with the change of the reaction. By monitoring the height change of the control rod, the safety of the reaction can be known. However, in the existing monitoring and control of control rods, through system control, once the system fails or there is a power outage, the height change of the control rod cannot be known at this time. Therefore, an auxiliary device for measuring the position of a reactor control rod is provided. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an auxiliary device for measuring the position of a reactor control rod to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An auxiliary device for measuring the position of a reactor control rod includes a protective base, a reactor body is arranged on the protective base, a control rod body is arranged on the reactor body, a side wall protective wall is fixedly installed on one side of the protective base, a top mounting plate is fixedly installed on one side of the side wall protective wall, a bottom auxiliary plate is installed on the top mounting plate through a guiding installation component, a bottom mounting block is installed on the bottom auxiliary plate, a lower conductive contact block is installed on the bottom mounting block, an upper conductive contact block is installed on the bottom side of the top mounting plate through a moving component, the lower conductive contact block is adapted to the upper conductive contact block, a position indicating device is arranged on one side of the bottom mounting block, and a warning component is arranged on the top mounting plate.

[0007] Preferably, the guiding installation component includes two moving holes opened on the top side of the top mounting plate, two moving columns are fixedly installed on the top side of the bottom auxiliary plate, the top ends of the two moving columns movably penetrate through the two moving holes and are both fixedly installed with top baffles, and the bottom side of the top baffle is in contact with the top side of the top mounting plate.

[0008] Preferably, one side of the lower conductive contact block is provided with a lower contact inclined surface, and one side of the upper conductive contact block is provided with an upper contact inclined surface, and the lower contact inclined surface and the upper contact inclined surface are adapted to each other.

[0009] Preferably, the moving component includes a convex chute opened on the bottom side of the top mounting plate, and a convex slider is fixedly installed on the top side of the upper conductive contact block, and the convex slider is slidably installed in the convex chute.

[0010] Preferably, the convex slider is made of insulating plastic, and one end of a compression spring is fixedly installed on one side of the convex slider, and the other end of the compression spring is fixedly installed on one inner wall of the convex chute.

[0011] Preferably, the position indicating device includes an infrared lamp fixedly installed on one side of the bottom mounting block, and a measurement scale is provided on one side of the side wall protection wall, and the measurement scale is adapted to the infrared lamp.

[0012] Preferably, the warning component includes a warning lamp fixedly installed on the top mounting plate, and the warning lamp, the lower conductive contact block and the upper conductive contact block are electrically connected.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this reactor control rod position measurement auxiliary device, with the bottom auxiliary plate provided, when the height of one control rod body is abnormally high, it will push the bottom auxiliary plate to move upward. The infrared light emitted by the infrared lamp can irradiate on the measurement scale. By observing the measurement scale, the height change of the control rod body can be intuitively observed, thus achieving a good auxiliary measurement effect.

[0014] As it continuously rises, at this time the lower conductive contact block will contact the upper conductive contact block. After contact, the warning lamp will light up and give an alarm to remind the staff. As it continuously moves upward, the lower contact inclined surface of the lower conductive contact block contacts the upper contact inclined surface more and more, and the current passing through is greater and greater. At this time, the sound of the warning lamp is also louder and louder. Through the change of the sound, it is used to remind people that it is more and more dangerous. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0016] Figure 2 is a schematic cross-sectional structure diagram of the present utility model;

[0017] Figure 3 is a schematic partial cross-sectional structure diagram of the present utility model.

[0018] In the figure: 1, protective base; 2, reactor body; 3, control rod body; 4, side wall protective wall; 5, top mounting plate; 6, movable hole; 7, movable column; 8, top baffle; 9, bottom auxiliary plate; 10, bottom mounting block; 11, lower conductive contact block; 12, upper conductive contact block; 13, lower contact inclined surface; 14, upper contact inclined surface; 15, convex chute; 16, convex slider; 17, compression spring; 18, infrared lamp; 19, measurement scale; 20, warning lamp. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment: Refer to Figures 1-3 , a measuring auxiliary device for the position of a reactor control rod, comprising a protective base 1, a reactor body 2 is provided on the protective base 1, a control rod body 3 is provided on the reactor body 2, a side wall protective wall 4 is fixedly installed on one side of the protective base 1, a top mounting plate 5 is fixedly installed on one side of the side wall protective wall 4, a bottom auxiliary plate 9 is installed on the top mounting plate 5 through a guiding installation component, a bottom mounting block 10 is installed on the bottom auxiliary plate 9, a lower conductive contact block 11 is installed on the bottom mounting block 10, an upper conductive contact block 12 is installed on the bottom side of the top mounting plate 5 through a moving component, the lower conductive contact block 11 is adapted to the upper conductive contact block 12, a position indicating device is provided on one side of the bottom mounting block 10, and a warning component is provided on the top mounting plate 5.

[0021] Specifically, the guiding installation component includes two movable holes 6 opened on the top side of the top mounting plate 5, two movable columns 7 are fixedly installed on the top side of the bottom auxiliary plate 9, the top ends of the two movable columns 7 movably penetrate through the two movable holes 6, and top baffles 8 are fixedly installed on both, the bottom side of the top baffle 8 is in contact with the top side of the top mounting plate 5. The position indicating device includes an infrared lamp 18 fixedly installed on one side of the bottom mounting block 10, a measurement scale 19 is provided on one side of the side wall protective wall 4, the measurement scale 19 is adapted to the infrared lamp 18, and a bottom auxiliary plate 9 is provided above the control rod body 3. When the height of one control rod body 3 is abnormal, it will push the bottom auxiliary plate 9 to move upward, and both the infrared lamp 18 and the lower conductive contact block 11 on the bottom mounting block 10 move upward. Through the infrared light emitted by the infrared lamp 18, it can irradiate on the measurement scale 19. By observing the measurement scale 19, the height change of the control rod body 3 can be intuitively observed, thus achieving a good auxiliary measurement effect.

[0022] Specifically, a lower contact inclined surface 13 is provided on one side of the lower conductive contact block 11, and an upper contact inclined surface 14 is provided on one side of the upper conductive contact block 12. The lower contact inclined surface 13 and the upper contact inclined surface 14 are adapted to each other. The warning component includes a warning light 20 fixedly installed on the top mounting plate 5. The warning light 20, the lower conductive contact block 11, and the upper conductive contact block 12 are electrically connected. As the height continuously increases, at this time, the lower conductive contact block 11 will contact the upper conductive contact block 12. After contact, the warning light 20 will light up and give an alarm to remind the staff. As it continuously moves upward, the lower contact inclined surface 13 of the lower conductive contact block 11 contacts the upper contact inclined surface 14 more and more, and the passing current becomes larger and larger. At this time, the sound of the warning light 20 also becomes louder and louder. Through the change of the sound, it is used to remind people that it is more and more dangerous.

[0023] Specifically, the moving component includes a convex chute 15 formed on the bottom side of the top mounting plate 5. A convex slider 16 is fixedly installed on the top side of the upper conductive contact block 12. The convex slider 16 is slidably installed in the convex chute 15. The convex slider 16 is made of insulating plastic. One end of a compression spring 17 is fixedly installed on one side of the convex slider 16, and the other end of the compression spring 17 is fixedly installed on one side inner wall of the convex chute 15. After the upper conductive contact block 12 is squeezed and contacted, it will drive the convex slider 16 to move in the convex chute 15 and compress the compression spring 17, so as to ensure that the upper conductive contact block 12 is in close contact with the lower conductive contact block 11.

[0024] During use: The control rod body 3 is arranged on the reactor body 2. A bottom auxiliary plate 9 is provided above the control rod body 3. When the height of one control rod body 3 is abnormally high, it will push the bottom auxiliary plate 9 upward. The infrared lamp 18 and the lower conductive contact block 11 on the bottom mounting block 10 both move upward. Through the infrared light emitted by the infrared lamp 18, it can irradiate on the measurement scale 19. By observing the measurement scale 19, the height change of the control rod body 3 can be intuitively observed, thus achieving a good auxiliary measurement effect. As the height continuously increases, at this time, the lower conductive contact block 11 will contact the upper conductive contact block 12. After contact, the warning light 20 will light up and give an alarm to remind the staff. As it continuously moves upward, the lower contact inclined surface 13 of the lower conductive contact block 11 contacts the upper contact inclined surface 14 more and more, and the passing current becomes larger and larger. At this time, the sound of the warning light 20 also becomes louder and louder. Through the change of the sound, it is used to remind people that it is more and more dangerous. After the upper conductive contact block 12 is squeezed and contacted, it will drive the convex slider 16 to move in the convex chute 15 and compress the compression spring 17, so as to ensure that the upper conductive contact block 12 is in close contact with the lower conductive contact block 11, which is convenient to use.

[0025] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A reactor control rod position measurement auxiliary device, comprising a protective base (1), a reactor body (2) is arranged on the protective base (1), a control rod body (3) is arranged on the reactor body (2), and the characteristics are: A side wall protection wall (4) is fixedly mounted on one side of the protection base (1), a top mounting plate (5) is fixedly mounted on one side of the side wall protection wall (4), a bottom auxiliary plate (9) is mounted on the top mounting plate (5) via a guide mounting assembly, a bottom mounting block (10) is mounted on the bottom auxiliary plate (9), a lower conductive contact block (11) is mounted on the bottom mounting block (10), an upper conductive contact block (12) is mounted on the bottom side of the top mounting plate (5) via a moving assembly, the lower conductive contact block (11) is matched with the upper conductive contact block (12), a position indicating device is provided on one side of the bottom mounting block (10), and a warning assembly is provided on the top mounting plate (5).

2. A reactor control rod position measurement auxiliary device according to claim 1, characterized in that: The guide installation assembly comprises two movable holes (6) opened on the top side of the top installation plate (5), two movable columns (7) are fixedly installed on the top side of the bottom auxiliary plate (9), the top ends of the two movable columns (7) movably pass through the two movable holes (6), and are both fixedly installed with a top baffle (8), and the bottom side of the top baffle (8) is in contact with the top side of the top installation plate (5).

3. A reactor control rod position measurement auxiliary device according to claim 1, characterized in that: A lower contact slope (13) is provided on one side of the lower conductive contact block (11), and an upper contact slope (14) is provided on one side of the upper conductive contact block (12); the lower contact slope (13) and the upper contact slope (14) are matched.

4. A reactor control rod position measurement auxiliary device according to claim 1, characterized in that: The moving assembly comprises a convex slide groove (15) opened on the bottom side of the top mounting plate (5), a convex slider (16) is fixedly mounted on the top side of the upper conductive contact block (12), and the convex slider (16) is slidably mounted in the convex slide groove (15).

5. A reactor control rod position measurement auxiliary device according to claim 4, characterized in that: The convex slider (16) is made of insulating plastic, one end of a squeeze spring (17) is fixedly mounted on one side of the convex slider (16), and the other end of the squeeze spring (17) is fixedly mounted on an inner wall of one side of the convex slide groove (15).

6. The reactor control rod position measurement auxiliary device according to claim 1, characterized in that: The position indicating device comprises an infrared lamp (18) fixedly mounted on one side of the bottom mounting block (10), and a measuring scale (19) is provided on one side of the side wall protection wall (4), and the measuring scale (19) is adapted to the infrared lamp (18).

7. The reactor control rod position measurement auxiliary device according to claim 1, characterized in that: The warning component comprises a warning light (20) fixedly mounted on the top mounting plate (5); the warning light (20), the lower conductive contact block (11) and the upper conductive contact block (12) are electrically connected.

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